On 2/15/2015 8:18 PM, Michael Ellerman wrote:
On Sun, 2015-02-15 at 08:16 -0400, Julian Margetson wrote:
Hi
I am unable to get any kernel beyond the 3.16 branch working on an
Acube Sam460ex
AMCC 460ex based motherboard. Kernel up 3.16.7-ckt6 working.
Does reverting b0345bbc6d09 change anything?
[ 6.364350] snd_hda_intel 0001:81:00.1: enabling device (0000 -> 0002)
[ 6.453794] snd_hda_intel 0001:81:00.1: ppc4xx_setup_msi_irqs: fail mapping
irq
[ 6.487530] Unable to handle kernel paging request for data at address
0x0fa06c7c
[ 6.495055] Faulting instruction address: 0xc032202c
[ 6.500033] Vector: 300 (Data Access) at [efa31cf0]
[ 6.504922] pc: c032202c: __reg_op+0xe8/0x100
[ 6.509697] lr: c0014f88: msi_bitmap_free_hwirqs+0x50/0x94
[ 6.515600] sp: efa31da0
[ 6.518491] msr: 21000
[ 6.521112] dar: fa06c7c
[ 6.523915] dsisr: 0
[ 6.526190] current = 0xef8bab00
[ 6.529603] pid = 115, comm = kworker/0:1
[ 6.534163] enter ? for help
[ 6.537054] [link register ] c0014f88 msi_bitmap_free_hwirqs+0x50/0x94
[ 6.543811] [efa31da0] c0014f78 msi_bitmap_free_hwirqs+0x40/0x94 (unreliable)
[ 6.551001] [efa31dc0] c001aee8 ppc4xx_setup_msi_irqs+0xac/0xf4
[ 6.556973] [efa31e00] c03503a4 pci_enable_msi_range+0x1e0/0x280
[ 6.563032] [efa31e40] f92c2f74 azx_probe_work+0xe0/0x57c [snd_hda_intel]
[ 6.569906] [efa31e80] c0036344 process_one_work+0x1e8/0x2f0
[ 6.575627] [efa31eb0] c003677c worker_thread+0x2f4/0x438
[ 6.581079] [efa31ef0] c003a3e4 kthread+0xc8/0xcc
[ 6.585844] [efa31f40] c000aec4 ret_from_kernel_thread+0x5c/0x64
[ 6.591910] mon> <no input ...>
cheers
Managed to do a third git bisect with the following results .
git bisect bad
9279d3286e10736766edcaf815ae10e00856e448 is the first bad commit
commit 9279d3286e10736766edcaf815ae10e00856e448
Author: Rasmus Villemoes<li...@rasmusvillemoes.dk>
Date: Wed Aug 6 16:10:16 2014 -0700
lib: bitmap: change parameter of bitmap_*_region to unsigned
Changing the pos parameter of __reg_op to unsigned allows the compiler
to generate slightly smaller and simpler code. Also update its callers
bitmap_*_region to receive and pass unsigned int. The return types of
bitmap_find_free_region and bitmap_allocate_region are still int to
allow a negative error code to be returned. An int is certainly capable
of representing any realistic return value.
Signed-off-by: Rasmus Villemoes<li...@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton<a...@linux-foundation.org>
Signed-off-by: Linus Torvalds<torva...@linux-foundation.org>
:040000 040000 4f560a7caaba2d05c146a3cea27e0d93739d950c
c3d4539acad26667a2d78844ead7b75af753f41e M include
:040000 040000 7a6fb894aac2a1d4e72f8e36b7c6de3c24509ad3
31d756da185e07d2de090c9e6aeb12689d58d310 M lib
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